num1 = 15
num2 = 17
print(f"num1 < num2的结果是{num1 < num2}")
print(f"num1 == num2的结果是{num1 == num2}")
print(f"num1 != num2的结果是{num1 != num2}")

age = int(input())

print(f"今年已经{age}岁了")

if age >= 18:
    print("我已经成年了")
    print("即将步入大学")
if age < 18:
    print("好好学习，天天向上")

print("时间过的真快")